Rapid Simulation of Blast Wave Propagation in Built Environments Using Coarse-Grain-Based Intelligent Modeling Methods

The paper is concerned with the development and evaluation of a fast, accurate, and versatile method of simulating blast wave propagation within complex built environments. Existing methods of modelling the propagation of a blast wave each fail in at least one of the speed, accuracy or versatility requirements. Conventional simulation, for example, typically takes several days to complete a single run. An alternative, novel method proposed here is to use a simulation approach implemented within a coarse spatial and time framework, where the mesh elements and time steps are orders of magnitude larger than those used in conventional simulations. The approach requires the use of intelligent modelling techniques to capture the behaviour of elements at the coarse level. The paper describes the new approach in detail, and provides preliminary results that demonstrate the feasibility of the approach and its potential to complete a simulation run within a few seconds.